Asskhstob to



I Re. 17,065

Aug. 14, 1928.

N. L. DAUPLAISE POWER STOPPING DEVICE Original Filed March '7, 1924 2 She'ets-Sheet l ,5101]: bouisDal zp laise.

Au 14, 192& Re. 17,065

' N. L. DAUPLAISE POWER STOPPING DEVICE Original Filed March '2, 1924 2 Sheets-Sheet 2 tqg. Z 3mm 1154b boui spauplaix Reissued Aug. 14, 1928. l

UNITEDZSTATESPATENT NOAH LOUIS nAUPLAIsn-or' SOUTH MANCHESTER, CONNECTICUT, AssIenoR T0 gNELsoN L. JARVIS, OEPALMER,

MASSACHUSETTS.

roWEasrorPINe DEVICE.

FFICEL. a

' b mn 1,55 a.,595, dated October ,27, 1925, Serial no, 697,681, filed March 7,1924. Application for re ssue filed October 20,

This invention relates to'power throw out devices, and' more specifically to an electric power throwout device for vlooms and machines having feed arrangements, suchas. velvet making m2LCl11IlS ,'H1aCl11I1G tools,

weaving and cloth making machines gener- .The principal object of this inventionlis the provision of automatic means-that will stop the machine,,and particularly the feed overloaded, stalled, or otherwiseinoperative.

Another object of the invention is the provision of means operated by the centrifugal action of the feeding means, that will-pen mit the power ofthe machine to operate as.

the machlne when the centrifugal means arelong as the centrifugal me'ans are'thrown away from the eenter' by the actionfof the moving art, but will stop the ower. of

slowed up or stopped, allowing the part op;

erated by. thecentrifugal force or movement of the centrifugal means to fall'towa'rds-the center. i v

Other objects and advantages of the invention should, be readily agparent by reference to the following' speci cation taken in connection with the accompanying drawings, and it will beu'nderstoodthat any modifications or departures'may "be made from the specific-- features disclosed within the sc'opeof the. claims without' departin'g means for oscillating the from orgexceeding the spirit of the invention, a preferred form only of the device being shown for sake of and by wayof' illu stration. 1 Figure 1 is a diagrammatic elevation showing the invention attached to the knife feeding arrangement of a velvet making chine. .Figure Q shows an end elevation ofthe rangements of Figure 1. Figure 3. is a cross section on line3.3 of Figure 1 showing the knife and the slide. to

which the knife is. attachedn M t t Figure 4 is a top viewof Figure 3 showing 327. Serial 4 No] 227,596.

the attachment of the knife and the attach- H nientof the oscillating cords to the knife slides. Figure 5 is a section on line 5 5 of Figure 1', showing the method of splitting the velvet means; of the knife. 1

"Fi'gure 6 isj af diagrammatic elevation showing the arrangement of the electric cir;

cuit attaching the invention to the power Figure 10 "is a side elevation of Figure 7.

lleferringto the vdrznvings, the velvet or clothl is split in two pieces, 'as shown in Figure 5,1by the knife 2. The cloth 1 is advanced a-galnst theedge of the knife2 by means of the loom mechanism drawing the oscillated backyand forth along the split edge offthe velvet as indicated by the far- "i igure 7 show- I n I ng the left hand en "clothover the severalrollers 3; The knife rows inFig ur e ll This oscillation is ob 'tained through a cordor belt 4 being oscillated back and forth over rollers 5 by means of an oscillating drum 6 having aspur wheel 7 on the end thereof interineshing with a rack 8 driven a link or connecting rod9 attached to' the drum 10 which is rota-ted'by the belt 11, Figure 2. TheQknife-Q isattached to the knife slide l2iwhich slides 'on the guide 'l3f'through the action of'the oscillating belt 4, which is attached to the slide at 1:4 and 15 The edge of the -knife"2 is made and kept very sharp and the velvet'is cutby the oscillation of this knife backfand forth'acros's its splitedge, as shown in Figure 5. r s s In the present instance my invention is applied to one of the idler'wheels Hand given the number 16 in Figure 1,; shown in detail fin: cross section in Figure 7. This idler wheel consists of the belt drum "mounted on'the shaft 18 on ball bearings 19.

Throughthe center of the shaft 18"is laid,

an insulated electric wire 20 having its end 2'1 turned over in contact with a brass bush ing22, this brass bushing. lying on a fiber at insulation bushing 23' on the end of the shaft 18.

, There is a cap 24 over the end of theshaft having'in I which balls 26 areloca'ted', and of such a'di itchannels or race ways 25in ameter that they may travel back and forth freely'in'the' channel 25.,

balls is provided by cap screws 27.

Access to these The insulated wire is connected source of electric power, such as electric batteries 28, Figure '6, andtov-the solenoid 29,

and the'solenoid tothe machine by the wire 30, Figure 6;,the'other lead of the circuit is through the machine, the wheel 16 being mounted on the machine. yThe power of .the

.machine isturned on vortaken off by means of the powerhandle 31 which is pivotedat 32 and is under normal pressure ofr the spring 33, to put it er if it is. not held by some other positive force." On the leverfil is a clip or stop 34 which engagesfa notch in a lever 35 pivoted at 36. Connected to the end of'the lever 36 is arod 37 capable of sliding in bearings 38 andhaving a contact plate 39 on the endv thereof. When the contact plate 39 is drawn u by the magnetics actionfof the solenoid the outer'end of the leverr35 which contacts with thepower handle, 31 is dropped down,

as indicated in dotted lines in Figure 6.

, This releases the catch 3 and -'thehandle .31 is pulled back'to ofi' power position by means of action of the'spring 33, thus stopping the power ofthe machine. The electric circuit 31-is closed through coming in contact with thebrass sleeve .22}

When the drum 17 is oscillated back and I I forth bythe belt or cords has described, the

balls 26 are thrown outta-the outermost position in the slot 25, in fact thrown outuntil :they

breaks the electric circuit. Should, beltior cordibe-broken for any ofcourse, hO 6 reason, or; should the ve1vetijam up on the of the knife and EcIogQLsloWing down the oscillation of the cordior belt 4, the drum 1 -17" will pause in its oscillatory; action and one or more ot the balls .26, will drop down V. in contact-with the brassfsleeve 22, thus com,-

7 pleting inner end of position through means o'ffthespring .33, thusishutting oil the power and preventing the velvet from being thrown up against the edge of the knife, and becoming cut,fdai n aged, or destroyed. The handle or'lever 31 -'co ntrols 1he powerof the machine,: which draws the cloth over the rollers 3s and oscillates theknife 2 against the split edge of in'position to'throwofi the pow- I v v r are at the oute rmost ends ofnthe slots i25 and operating handle he action of the balls 26' contact -Wi ththesc ap screw 27, as; indicated in dotted lines in FigureK. This,

:tact with the ofi the power "of the machine.

turned on the machine, and itis'held in this positionby the clip orpawl 34, which is released the solenoid mechanism whenthe mechanism for oscillating the knife against the edge of the cloth is stoppedthrough being' jammed. vVVhe'n'the solenoidreleases the handle31 it' returns'to the, off power position-indicated in dotted lines, thereby shutting o'fithe power, exactly the same as "though it were drawn overthereby handQ 'From the foregoingit' will be seen that as long as the feed drum 17- is in action through rotating or'oscillating the balls 26 the power .of the machine 7 is not interrupted and the feedof the cloth or velvet is con tinuous against the edge oi the knife,nbut when the drum 17 pauses in its actionthe balls drop'down, making an'electric contact,

which through the action, ofthe solenoid,

.throw'sfofl'the power handle and shuts o-fi ,the machine, preventing further destruction of the clotlror otherpbject that is beingfe'd .to' the machine. H v constantly oscillated back and forthby the u whichcarries the knife back and forth across thefedg'e of the cloth, The oscillation is so rapidthat there is not suflicient pause in the' memberlfi atiits time 'of change v.of-d irection toallow, the balls'to dropdown The wheel member 16 is Q3 loo and form thecontact. ;The wheel'16 is rapin contact with the flange 41,; being supportedby a -rod ,43 supported byfthe bracketed nd Pr s a h flange .41 y'iuie ac- 11s bracket 44.. If} the belt is brok somesrofi-the drum 17; the brake roari g-s tion ofthe springs 45 held in :a suitable re;

cess'inth the drum 1 7,, to, almost instantaneous" rest,

allowing the balls 26 to drop down and con-' brass plate I 22 thereby shutting I .vFrom the foregoing itwill be seen thatthe inventioniconsists' in a very, simple arrange ment inserted 1n the fefidfllg'dflc of apowermachine-and so arrangedthat it'will "automatically throw off the"fpowe r andstop the machine in case fof overload, damage or in terruption to the fee'd of the machine, and

that it is'p'aiticularly applicable toa weaving machine, machine tools and devices of idly oscillatedf'back an forth byfthe belt P 14 making about, a quarteriturnin each o's- V In OrdertofaciIitate thesto ppingiof the I vbr e nsistsof 1 be ks sh g q 1 that general'character, or in any placewhere articles in course of manufacture are bemg fed tothe machine which produces them, or

which is operating upon them.

lclaim: i 1. In a machine'of the character described,

means for applying power to the machine, a

le'ver for shutting off and turning on, the power, yielding means adapted to urge the power-lever towards off power position, a

pivoted 'lever engaging the power lever to hold it in on power position, a solenoid engaging one end ofthe pivoted lever, an idler wheel having an electric circuit therein and a separated portion and a freely movable metal member adaptedto close-the space in the circuit by gravity to energizethe solenoid to operate thepivoted lever to release the power lever andthrow it to an off power position and to move away from the separated portion of the circuit by centrifugal action whenthe idlerwheel is moving when -the power lever in on power position,"

2. In a machine of the character described,

means for feeding the cloth, a knife for splitting the cloth, means for oscillating the knife back and'forth against the edge of the cloth, an idler wheel in the oscillating means having an electric circuit therein,

having a separated'portion, a race-way in the wheel communicating with the separated portion of the circuit, a freely movable metal piece-in the race-way adapted to close over the separated portion of the circuit by gravity when the wheel is at rest and to move away from the separated portion of the circuit by centrifugal action when the wheel is in motion through the knife oscillating means, said circuit being connected 'to the power control ofthe machine through a solenoid which is adapted to shut off; the power of the machine when the motion of the knife oscillating means is stopped. i

3. In a machine of the character described,

means for feeding the cloth, a knife for splitting the cloth, means for oscillating the knife back and forth against the edge of the cloth, anidler wheel in the oscillating means having an electric circuit therein,

having a separated portion,a race-way in lthewheel communicatin with the separated a frictionbrake engaging the idler wheel adapted to hold itagainst motion] on its axle when vthe knife Loscillatin'gmeans is broken or suddenly "removed whilefin mo tion ,4. In a device of'the character'des'cribed, power means'for advancing a fabric, .a knife for splitting the fabric, means: for reciprocating the knife against the fabric, an electric circuit between the power-means and the reciprocating mea-ns, a movable member actuatedby the reciprocating means and united with the two leads of the circuit to leave a I a gap betweenfhem, a loose metal member inf the movable'member'adapted to'rest on the ends ,of thecircuit leads and close the circuit when the movable member is atrest and'to move away from the'circuit' leads and break the circuit when thewmovable member is actuated-by thefreciprocating means, and means operatedby-v-the circult to 1 stop the power means whenthe circuit is closed. r L

In a'device of the: characterdescribed,

power means for advancing a. fabric, means for throwing on and'ofl' the power, a knife for splitting the fabric, means for recipro eating the knife against the fabric, anfelectric circuit between the power meansfand reciprocating -means, electro-magnetic means in the circuitfa movable member actuated by the reciprocating means and united with the two leads of the circuit tole'av'ea gap between -tl1em, a"-loose metal member in the movable member adapted'torestfon theends of the circuitleads and closefthe circuit 'when themovab-le me'mber is at-rest to energize the electro-magnetic means-to throw off the power means and tomove-away from the circuit leads and break the circuit when the movable member'is actuated by the reciprocating means;

6. "In a a device of the character described for use in combination with a power 'op, erated machine, means for controlling the Oil power ofthe machine to'turn on or shut off f the power thereto, means rfor holdi'ng the power control means in OIl-POWB-I' POSltiOIl, electrically operated means adapted to op- ,erate said means to; shut off the power, an

electric circuit connected with the electri-. cally operated means and having a separated portion therein interrupting the circuit, a movable electric conducting memberadapted to'close thespacein the circuit, movable positioning means-adapted to regulate the position of the movable conducting member with respect to the space in the circuit, and I movable operating means engaging the positioning means to control the position of the conducting member, said conducting member beingfremo'ved from the space in the circuit when the movable operating meansis 1 operating the positioning means, and electri- "callyclosing the space when the movable operating means is out of operative engagement with the positioning means.

- 7,111 a defies-oil the cheater described -for use-in combination, rwithwa. power operated machine, means for controlling the power-of the machineto turn on or shut-off the'power thereto, means for holding the power 7: control means in ion-power c position,

a solenoidladapted to release saidt means to shut-off the. vpower when. the solenoid isener- "gized; an electric circuit connected with the solenoid to energize the same when'jthe circuit is closed and having aseparated portion therein interrupting the-circuit, a. movsaid conducting member being removed from the, space in the-fcircuitwhen the m0w'n'g belt+likemember isoperating the wheel-like member, and electrically closing'the space when the beltlike' member is v out of engagement with the wheel-like member;

' 8.: In -a device. ofthe character described "foruse in combination with a. power operated machine, pivoted'me'ans' for controlling the power ofthelmachinecto turn on or shutzofithe power .thereto, latch means for v holding thexpivoted power control in. on Jpower position, a solenoid adaptedto release theletch means to shut ofl the power when the solenoid is energized;v 81 electric circuit connected withft-he {solenoid to energize the -same when the circuit is-closed and hafving aseparated port-iontherein interruptinglthe circuit-, -e' movable electric conducting membe'r adapted to close the spacejinthe circuit to'fcomplete the eleotric c1rcuit, 'a,rotatable moot I wheel Adapted to regulate the'positionof the conducting memberfin relation to the space in the circuit and a movable belt-like member engaging-the periphery of the ,wheel to her, said conducting member being; removed ing the said space when the belt-like member isout of engagement ;with the periphery .of the Wheel.

nble'electricvconducting member adapted to close thefspace ln the.CIICUlKtOCOIDPlGt the is circuit a rotatablewheel-like member adapt- -.ed;to regula'tethe. position of the'movable conducting member with respect to the space in thercircuit'and a movable belt like member engaging the wheel-like member to control the POSItlOD'Of the, conducting member,

I 9; In a device. of

erzited mac'hine,- means for, controlling t solenoid toenergi'ze thesame when the 'cir-V therein 'interruptingithe; circuit, a. movable electric conducting memberadapted to close the space in the. circuit to 'completethe electric .circuige, rotatable member adapted to regulate thepposition of, the movable conducting member-with respect to the spzice in the, circuit,v and e'movable member engaging the rotatable -member to control the, position of the conducting member said conducting'member being removed from the space in the circuit when the moving movthe cheracterfldescribed "for .use in combination with o power 01p- I control the position of the conducting' memcuitisjclosed and having a-separatedportion:

able member is engaging the rotatable mem bet and electrically closing 'thespace when the moving movable member iso'ut' of engagementwi-th the rotatable member.

. ni s monywhereof. 1.11m afiixed my signature.

NewLoms'mtmis 

